Re: [PATCH 2/2] blk-mq: ensure a q_usage_counter reference is held when splitting bios

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jan 12, 2024 at 07:22:18AM -0700, Jens Axboe wrote:
> Yep it is pretty cheap, but it's not free. Here's a test where we just
> grab a ref and drop it, which should arguably be cheaper than doing a
> ref at the top and dropping it at the bottom due to temporal locality:
> 
>      5.01%     +0.86%  [kernel.vmlinux]  [k] blk_mq_submit_bio

Ok.  Do you want to send out your version formally?





[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux